Armadillo is so long ago already. Cooling channel geometry? Photograph handy?
Thanks,
John
-----Original Message-----
From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Ed LeBouthillier
Sent: dinsdag 16 juli 2019 2:52
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: Electroforming Experiment
Importance: High
On Mon, 2019-07-15 at 16:12 -0700, Ben Brockert wrote:
This is what I did on a similar project at Armadillo, printed the
channels with FDM in ABS and then electroformed the closeout inside
and out. Then removed the plastic with an ultrasonic cleaner of warm
acetone, which worked surprisingly well at clearing out deep channels
of plastic. The minimum size of a workable engine is set by the
resolution of the plastic printer; an SLA printer would be much
better suited to getting good surface finish and small features.
